Home / 284,626.12-392,785.28-155,567.20

Finding the Fourth Proportional to 284,626.12, 392,785.28 and 155,567.20

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Solution

The fourth proportional to 284,626.12, 392,785.28 and 155,567.20 is: 214,683.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,626.12 : 392,785.28 = 155,567.20 : x
  2. Step 2: Convert to fraction form
    284,626.12/392,785.28 = 155,567.20/x
  3. Step 3: Cross multiply
    284,626.12x = 392,785.28 × 155,567.20
  4. Step 4: Simplify right side
    284,626.12x = 61,104,506,210.82
  5. Step 5: Solve for x
    x = 61,104,506,210.82/284,626.12
  6. Step 6: Final answer
    x = 214,683.41

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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.