Home / 208,721.35-287,925.15-148,316.41

Finding the Fourth Proportional to 208,721.35, 287,925.15 and 148,316.41

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Solution

The fourth proportional to 208,721.35, 287,925.15 and 148,316.41 is: 204,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,721.35 : 287,925.15 = 148,316.41 : x
  2. Step 2: Convert to fraction form
    208,721.35/287,925.15 = 148,316.41/x
  3. Step 3: Cross multiply
    208,721.35x = 287,925.15 × 148,316.41
  4. Step 4: Simplify right side
    208,721.35x = 42,704,024,596.71
  5. Step 5: Solve for x
    x = 42,704,024,596.71/208,721.35
  6. Step 6: Final answer
    x = 204,598.26

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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.