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Finding the Fourth Proportional to 316,830.74, 437,209.71 and 180,859.28

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Solution

The fourth proportional to 316,830.74, 437,209.71 and 180,859.28 is: 249,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,830.74 : 437,209.71 = 180,859.28 : x
  2. Step 2: Convert to fraction form
    316,830.74/437,209.71 = 180,859.28/x
  3. Step 3: Cross multiply
    316,830.74x = 437,209.71 × 180,859.28
  4. Step 4: Simplify right side
    316,830.74x = 79,073,433,359.61
  5. Step 5: Solve for x
    x = 79,073,433,359.61/316,830.74
  6. Step 6: Final answer
    x = 249,576.27

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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.