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Finding the Fourth Proportional to 288,340.30, 432,602.98 and 138,591.44

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Solution

The fourth proportional to 288,340.30, 432,602.98 and 138,591.44 is: 207,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,340.30 : 432,602.98 = 138,591.44 : x
  2. Step 2: Convert to fraction form
    288,340.30/432,602.98 = 138,591.44/x
  3. Step 3: Cross multiply
    288,340.30x = 432,602.98 × 138,591.44
  4. Step 4: Simplify right side
    288,340.30x = 59,955,069,946.49
  5. Step 5: Solve for x
    x = 59,955,069,946.49/288,340.30
  6. Step 6: Final answer
    x = 207,931.63

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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.