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Finding the Fourth Proportional to 150,424.64, 225,533.28 and 71,472.32

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Solution

The fourth proportional to 150,424.64, 225,533.28 and 71,472.32 is: 107,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,424.64 : 225,533.28 = 71,472.32 : x
  2. Step 2: Convert to fraction form
    150,424.64/225,533.28 = 71,472.32/x
  3. Step 3: Cross multiply
    150,424.64x = 225,533.28 × 71,472.32
  4. Step 4: Simplify right side
    150,424.64x = 16,119,386,758.81
  5. Step 5: Solve for x
    x = 16,119,386,758.81/150,424.64
  6. Step 6: Final answer
    x = 107,159.22

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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.