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Finding the Fourth Proportional to 292,374.18, 403,476.40 and 158,238.18

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Solution

The fourth proportional to 292,374.18, 403,476.40 and 158,238.18 is: 218,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,374.18 : 403,476.40 = 158,238.18 : x
  2. Step 2: Convert to fraction form
    292,374.18/403,476.40 = 158,238.18/x
  3. Step 3: Cross multiply
    292,374.18x = 403,476.40 × 158,238.18
  4. Step 4: Simplify right side
    292,374.18x = 63,845,371,208.95
  5. Step 5: Solve for x
    x = 63,845,371,208.95/292,374.18
  6. Step 6: Final answer
    x = 218,368.71

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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.