Home / 284,545.08-392,726.52-187,578.72

Finding the Fourth Proportional to 284,545.08, 392,726.52 and 187,578.72

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Solution

The fourth proportional to 284,545.08, 392,726.52 and 187,578.72 is: 258,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,545.08 : 392,726.52 = 187,578.72 : x
  2. Step 2: Convert to fraction form
    284,545.08/392,726.52 = 187,578.72/x
  3. Step 3: Cross multiply
    284,545.08x = 392,726.52 × 187,578.72
  4. Step 4: Simplify right side
    284,545.08x = 73,667,137,931.65
  5. Step 5: Solve for x
    x = 73,667,137,931.65/284,545.08
  6. Step 6: Final answer
    x = 258,894.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.