Home / 284,678.47-392,895.35-163,817.29

Finding the Fourth Proportional to 284,678.47, 392,895.35 and 163,817.29

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Solution

The fourth proportional to 284,678.47, 392,895.35 and 163,817.29 is: 226,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,678.47 : 392,895.35 = 163,817.29 : x
  2. Step 2: Convert to fraction form
    284,678.47/392,895.35 = 163,817.29/x
  3. Step 3: Cross multiply
    284,678.47x = 392,895.35 × 163,817.29
  4. Step 4: Simplify right side
    284,678.47x = 64,363,050,303.59
  5. Step 5: Solve for x
    x = 64,363,050,303.59/284,678.47
  6. Step 6: Final answer
    x = 226,090.34

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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.