Home / 354,041.96-530,989.02-129,508.16

Finding the Fourth Proportional to 354,041.96, 530,989.02 and 129,508.16

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Solution

The fourth proportional to 354,041.96, 530,989.02 and 129,508.16 is: 194,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,041.96 : 530,989.02 = 129,508.16 : x
  2. Step 2: Convert to fraction form
    354,041.96/530,989.02 = 129,508.16/x
  3. Step 3: Cross multiply
    354,041.96x = 530,989.02 × 129,508.16
  4. Step 4: Simplify right side
    354,041.96x = 68,767,410,960.40
  5. Step 5: Solve for x
    x = 68,767,410,960.40/354,041.96
  6. Step 6: Final answer
    x = 194,235.20

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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.