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Finding the Fourth Proportional to 157,200.40, 235,800.60 and 52,005.70

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Solution

The fourth proportional to 157,200.40, 235,800.60 and 52,005.70 is: 78,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,200.40 : 235,800.60 = 52,005.70 : x
  2. Step 2: Convert to fraction form
    157,200.40/235,800.60 = 52,005.70/x
  3. Step 3: Cross multiply
    157,200.40x = 235,800.60 × 52,005.70
  4. Step 4: Simplify right side
    157,200.40x = 12,262,975,263.42
  5. Step 5: Solve for x
    x = 12,262,975,263.42/157,200.40
  6. Step 6: Final answer
    x = 78,008.55

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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.