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Finding the Fourth Proportional to 429,883.52, 643,836.59 and 249,522.25

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Solution

The fourth proportional to 429,883.52, 643,836.59 and 249,522.25 is: 373,709.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,883.52 : 643,836.59 = 249,522.25 : x
  2. Step 2: Convert to fraction form
    429,883.52/643,836.59 = 249,522.25/x
  3. Step 3: Cross multiply
    429,883.52x = 643,836.59 × 249,522.25
  4. Step 4: Simplify right side
    429,883.52x = 160,651,554,569.13
  5. Step 5: Solve for x
    x = 160,651,554,569.13/429,883.52
  6. Step 6: Final answer
    x = 373,709.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.