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Finding the Fourth Proportional to 284,666.72, 392,868.75 and 163,813.10

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Solution

The fourth proportional to 284,666.72, 392,868.75 and 163,813.10 is: 226,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,666.72 : 392,868.75 = 163,813.10 : x
  2. Step 2: Convert to fraction form
    284,666.72/392,868.75 = 163,813.10/x
  3. Step 3: Cross multiply
    284,666.72x = 392,868.75 × 163,813.10
  4. Step 4: Simplify right side
    284,666.72x = 64,357,045,866.28
  5. Step 5: Solve for x
    x = 64,357,045,866.28/284,666.72
  6. Step 6: Final answer
    x = 226,078.58

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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.