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Finding the Fourth Proportional to 304,862.28, 420,710.28 and 170,726.28

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Solution

The fourth proportional to 304,862.28, 420,710.28 and 170,726.28 is: 235,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,862.28 : 420,710.28 = 170,726.28 : x
  2. Step 2: Convert to fraction form
    304,862.28/420,710.28 = 170,726.28/x
  3. Step 3: Cross multiply
    304,862.28x = 420,710.28 × 170,726.28
  4. Step 4: Simplify right side
    304,862.28x = 71,826,301,062.16
  5. Step 5: Solve for x
    x = 71,826,301,062.16/304,862.28
  6. Step 6: Final answer
    x = 235,602.45

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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.