Home / 284,639.16-392,803.22-155,580.20

Finding the Fourth Proportional to 284,639.16, 392,803.22 and 155,580.20

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Solution

The fourth proportional to 284,639.16, 392,803.22 and 155,580.20 is: 214,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,639.16 : 392,803.22 = 155,580.20 : x
  2. Step 2: Convert to fraction form
    284,639.16/392,803.22 = 155,580.20/x
  3. Step 3: Cross multiply
    284,639.16x = 392,803.22 × 155,580.20
  4. Step 4: Simplify right side
    284,639.16x = 61,112,403,528.24
  5. Step 5: Solve for x
    x = 61,112,403,528.24/284,639.16
  6. Step 6: Final answer
    x = 214,701.32

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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.