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Finding the Fourth Proportional to 429,881.52, 643,833.59 and 249,520.25

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Solution

The fourth proportional to 429,881.52, 643,833.59 and 249,520.25 is: 373,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,881.52 : 643,833.59 = 249,520.25 : x
  2. Step 2: Convert to fraction form
    429,881.52/643,833.59 = 249,520.25/x
  3. Step 3: Cross multiply
    429,881.52x = 643,833.59 × 249,520.25
  4. Step 4: Simplify right side
    429,881.52x = 160,649,518,335.20
  5. Step 5: Solve for x
    x = 160,649,518,335.20/429,881.52
  6. Step 6: Final answer
    x = 373,706.50

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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.