Home / 228,306.87-315,042.02-154,569.30

Finding the Fourth Proportional to 228,306.87, 315,042.02 and 154,569.30

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Solution

The fourth proportional to 228,306.87, 315,042.02 and 154,569.30 is: 213,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,306.87 : 315,042.02 = 154,569.30 : x
  2. Step 2: Convert to fraction form
    228,306.87/315,042.02 = 154,569.30/x
  3. Step 3: Cross multiply
    228,306.87x = 315,042.02 × 154,569.30
  4. Step 4: Simplify right side
    228,306.87x = 48,695,824,501.99
  5. Step 5: Solve for x
    x = 48,695,824,501.99/228,306.87
  6. Step 6: Final answer
    x = 213,291.10

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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.