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Finding the Fourth Proportional to 310,064.27, 427,862.52 and 187,602.26

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Solution

The fourth proportional to 310,064.27, 427,862.52 and 187,602.26 is: 258,875.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,064.27 : 427,862.52 = 187,602.26 : x
  2. Step 2: Convert to fraction form
    310,064.27/427,862.52 = 187,602.26/x
  3. Step 3: Cross multiply
    310,064.27x = 427,862.52 × 187,602.26
  4. Step 4: Simplify right side
    310,064.27x = 80,267,973,581.98
  5. Step 5: Solve for x
    x = 80,267,973,581.98/310,064.27
  6. Step 6: Final answer
    x = 258,875.28

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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.