Home / 209,046.02-288,603.18-137,633.63

Finding the Fourth Proportional to 209,046.02, 288,603.18 and 137,633.63

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Solution

The fourth proportional to 209,046.02, 288,603.18 and 137,633.63 is: 190,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,046.02 : 288,603.18 = 137,633.63 : x
  2. Step 2: Convert to fraction form
    209,046.02/288,603.18 = 137,633.63/x
  3. Step 3: Cross multiply
    209,046.02x = 288,603.18 × 137,633.63
  4. Step 4: Simplify right side
    209,046.02x = 39,721,501,849.93
  5. Step 5: Solve for x
    x = 39,721,501,849.93/209,046.02
  6. Step 6: Final answer
    x = 190,013.20

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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.