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Finding the Fourth Proportional to 292,730.76, 439,097.20 and 71,114.76

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Solution

The fourth proportional to 292,730.76, 439,097.20 and 71,114.76 is: 106,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,730.76 : 439,097.20 = 71,114.76 : x
  2. Step 2: Convert to fraction form
    292,730.76/439,097.20 = 71,114.76/x
  3. Step 3: Cross multiply
    292,730.76x = 439,097.20 × 71,114.76
  4. Step 4: Simplify right side
    292,730.76x = 31,226,291,994.67
  5. Step 5: Solve for x
    x = 31,226,291,994.67/292,730.76
  6. Step 6: Final answer
    x = 106,672.40

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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.