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Finding the Fourth Proportional to 318,849.40, 440,014.98 and 175,614.40

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Solution

The fourth proportional to 318,849.40, 440,014.98 and 175,614.40 is: 242,349.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,849.40 : 440,014.98 = 175,614.40 : x
  2. Step 2: Convert to fraction form
    318,849.40/440,014.98 = 175,614.40/x
  3. Step 3: Cross multiply
    318,849.40x = 440,014.98 × 175,614.40
  4. Step 4: Simplify right side
    318,849.40x = 77,272,966,703.71
  5. Step 5: Solve for x
    x = 77,272,966,703.71/318,849.40
  6. Step 6: Final answer
    x = 242,349.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.