Home / 284,113.26-392,064.84-156,787.20

Finding the Fourth Proportional to 284,113.26, 392,064.84 and 156,787.20

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Solution

The fourth proportional to 284,113.26, 392,064.84 and 156,787.20 is: 216,360.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,113.26 : 392,064.84 = 156,787.20 : x
  2. Step 2: Convert to fraction form
    284,113.26/392,064.84 = 156,787.20/x
  3. Step 3: Cross multiply
    284,113.26x = 392,064.84 × 156,787.20
  4. Step 4: Simplify right side
    284,113.26x = 61,470,748,482.05
  5. Step 5: Solve for x
    x = 61,470,748,482.05/284,113.26
  6. Step 6: Final answer
    x = 216,360.01

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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.