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Finding the Fourth Proportional to 318,752.88, 439,888.65 and 175,518.05

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Solution

The fourth proportional to 318,752.88, 439,888.65 and 175,518.05 is: 242,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,752.88 : 439,888.65 = 175,518.05 : x
  2. Step 2: Convert to fraction form
    318,752.88/439,888.65 = 175,518.05/x
  3. Step 3: Cross multiply
    318,752.88x = 439,888.65 × 175,518.05
  4. Step 4: Simplify right side
    318,752.88x = 77,208,395,865.69
  5. Step 5: Solve for x
    x = 77,208,395,865.69/318,752.88
  6. Step 6: Final answer
    x = 242,220.23

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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.