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Finding the Fourth Proportional to 318,703.29, 439,802.01 and 175,464.42

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Solution

The fourth proportional to 318,703.29, 439,802.01 and 175,464.42 is: 242,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,703.29 : 439,802.01 = 175,464.42 : x
  2. Step 2: Convert to fraction form
    318,703.29/439,802.01 = 175,464.42/x
  3. Step 3: Cross multiply
    318,703.29x = 439,802.01 × 175,464.42
  4. Step 4: Simplify right side
    318,703.29x = 77,169,604,599.48
  5. Step 5: Solve for x
    x = 77,169,604,599.48/318,703.29
  6. Step 6: Final answer
    x = 242,136.20

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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.