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Finding the Fourth Proportional to 157,508.40, 236,262.60 and 143,730.30

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Solution

The fourth proportional to 157,508.40, 236,262.60 and 143,730.30 is: 215,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,508.40 : 236,262.60 = 143,730.30 : x
  2. Step 2: Convert to fraction form
    157,508.40/236,262.60 = 143,730.30/x
  3. Step 3: Cross multiply
    157,508.40x = 236,262.60 × 143,730.30
  4. Step 4: Simplify right side
    157,508.40x = 33,958,094,376.78
  5. Step 5: Solve for x
    x = 33,958,094,376.78/157,508.40
  6. Step 6: Final answer
    x = 215,595.45

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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.