Home / 385,807.32-578,711.04-161,045.13

Finding the Fourth Proportional to 385,807.32, 578,711.04 and 161,045.13

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Solution

The fourth proportional to 385,807.32, 578,711.04 and 161,045.13 is: 241,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,807.32 : 578,711.04 = 161,045.13 : x
  2. Step 2: Convert to fraction form
    385,807.32/578,711.04 = 161,045.13/x
  3. Step 3: Cross multiply
    385,807.32x = 578,711.04 × 161,045.13
  4. Step 4: Simplify right side
    385,807.32x = 93,198,594,669.24
  5. Step 5: Solve for x
    x = 93,198,594,669.24/385,807.32
  6. Step 6: Final answer
    x = 241,567.72

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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.