Home / 385,233.84-577,912.24-118,931.76

Finding the Fourth Proportional to 385,233.84, 577,912.24 and 118,931.76

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Solution

The fourth proportional to 385,233.84, 577,912.24 and 118,931.76 is: 178,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,233.84 : 577,912.24 = 118,931.76 : x
  2. Step 2: Convert to fraction form
    385,233.84/577,912.24 = 118,931.76/x
  3. Step 3: Cross multiply
    385,233.84x = 577,912.24 × 118,931.76
  4. Step 4: Simplify right side
    385,233.84x = 68,732,119,828.74
  5. Step 5: Solve for x
    x = 68,732,119,828.74/385,233.84
  6. Step 6: Final answer
    x = 178,416.62

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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.