Home / 385,384.90-578,048.55-160,687.30

Finding the Fourth Proportional to 385,384.90, 578,048.55 and 160,687.30

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Solution

The fourth proportional to 385,384.90, 578,048.55 and 160,687.30 is: 241,018.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,384.90 : 578,048.55 = 160,687.30 : x
  2. Step 2: Convert to fraction form
    385,384.90/578,048.55 = 160,687.30/x
  3. Step 3: Cross multiply
    385,384.90x = 578,048.55 × 160,687.30
  4. Step 4: Simplify right side
    385,384.90x = 92,885,060,768.42
  5. Step 5: Solve for x
    x = 92,885,060,768.42/385,384.90
  6. Step 6: Final answer
    x = 241,018.94

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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.