Home / 330,432.16-455,981.52-187,189.28

Finding the Fourth Proportional to 330,432.16, 455,981.52 and 187,189.28

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Solution

The fourth proportional to 330,432.16, 455,981.52 and 187,189.28 is: 258,312.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,432.16 : 455,981.52 = 187,189.28 : x
  2. Step 2: Convert to fraction form
    330,432.16/455,981.52 = 187,189.28/x
  3. Step 3: Cross multiply
    330,432.16x = 455,981.52 × 187,189.28
  4. Step 4: Simplify right side
    330,432.16x = 85,354,852,422.11
  5. Step 5: Solve for x
    x = 85,354,852,422.11/330,432.16
  6. Step 6: Final answer
    x = 258,312.79

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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.