Home / 280,916.64-387,664.92-153,592.20

Finding the Fourth Proportional to 280,916.64, 387,664.92 and 153,592.20

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Solution

The fourth proportional to 280,916.64, 387,664.92 and 153,592.20 is: 211,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,916.64 : 387,664.92 = 153,592.20 : x
  2. Step 2: Convert to fraction form
    280,916.64/387,664.92 = 153,592.20/x
  3. Step 3: Cross multiply
    280,916.64x = 387,664.92 × 153,592.20
  4. Step 4: Simplify right side
    280,916.64x = 59,542,307,925.62
  5. Step 5: Solve for x
    x = 59,542,307,925.62/280,916.64
  6. Step 6: Final answer
    x = 211,957.21

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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.