Home / 284,767.36-427,145.28-85,088.32

Finding the Fourth Proportional to 284,767.36, 427,145.28 and 85,088.32

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Solution

The fourth proportional to 284,767.36, 427,145.28 and 85,088.32 is: 127,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,767.36 : 427,145.28 = 85,088.32 : x
  2. Step 2: Convert to fraction form
    284,767.36/427,145.28 = 85,088.32/x
  3. Step 3: Cross multiply
    284,767.36x = 427,145.28 × 85,088.32
  4. Step 4: Simplify right side
    284,767.36x = 36,345,074,271.13
  5. Step 5: Solve for x
    x = 36,345,074,271.13/284,767.36
  6. Step 6: Final answer
    x = 127,630.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.