Home / 287,182.03-431,039.02-145,127.27

Finding the Fourth Proportional to 287,182.03, 431,039.02 and 145,127.27

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Solution

The fourth proportional to 287,182.03, 431,039.02 and 145,127.27 is: 217,825.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,182.03 : 431,039.02 = 145,127.27 : x
  2. Step 2: Convert to fraction form
    287,182.03/431,039.02 = 145,127.27/x
  3. Step 3: Cross multiply
    287,182.03x = 431,039.02 × 145,127.27
  4. Step 4: Simplify right side
    287,182.03x = 62,555,516,010.67
  5. Step 5: Solve for x
    x = 62,555,516,010.67/287,182.03
  6. Step 6: Final answer
    x = 217,825.31

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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.