Home / 385,429.32-577,811.75-148,937.94

Finding the Fourth Proportional to 385,429.32, 577,811.75 and 148,937.94

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Solution

The fourth proportional to 385,429.32, 577,811.75 and 148,937.94 is: 223,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,429.32 : 577,811.75 = 148,937.94 : x
  2. Step 2: Convert to fraction form
    385,429.32/577,811.75 = 148,937.94/x
  3. Step 3: Cross multiply
    385,429.32x = 577,811.75 × 148,937.94
  4. Step 4: Simplify right side
    385,429.32x = 86,058,091,008.11
  5. Step 5: Solve for x
    x = 86,058,091,008.11/385,429.32
  6. Step 6: Final answer
    x = 223,278.53

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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.