Home / 238,705.74-329,417.93-136,740.11

Finding the Fourth Proportional to 238,705.74, 329,417.93 and 136,740.11

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Solution

The fourth proportional to 238,705.74, 329,417.93 and 136,740.11 is: 188,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.74 : 329,417.93 = 136,740.11 : x
  2. Step 2: Convert to fraction form
    238,705.74/329,417.93 = 136,740.11/x
  3. Step 3: Cross multiply
    238,705.74x = 329,417.93 × 136,740.11
  4. Step 4: Simplify right side
    238,705.74x = 45,044,644,225.02
  5. Step 5: Solve for x
    x = 45,044,644,225.02/238,705.74
  6. Step 6: Final answer
    x = 188,703.65

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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.