Home / 385,429.08-577,811.36-148,937.70

Finding the Fourth Proportional to 385,429.08, 577,811.36 and 148,937.70

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Solution

The fourth proportional to 385,429.08, 577,811.36 and 148,937.70 is: 223,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,429.08 : 577,811.36 = 148,937.70 : x
  2. Step 2: Convert to fraction form
    385,429.08/577,811.36 = 148,937.70/x
  3. Step 3: Cross multiply
    385,429.08x = 577,811.36 × 148,937.70
  4. Step 4: Simplify right side
    385,429.08x = 86,057,894,992.27
  5. Step 5: Solve for x
    x = 86,057,894,992.27/385,429.08
  6. Step 6: Final answer
    x = 223,278.16

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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.