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Finding the Fourth Proportional to 290,277.95, 400,588.52 and 159,461.12

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Solution

The fourth proportional to 290,277.95, 400,588.52 and 159,461.12 is: 220,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,277.95 : 400,588.52 = 159,461.12 : x
  2. Step 2: Convert to fraction form
    290,277.95/400,588.52 = 159,461.12/x
  3. Step 3: Cross multiply
    290,277.95x = 400,588.52 × 159,461.12
  4. Step 4: Simplify right side
    290,277.95x = 63,878,292,381.12
  5. Step 5: Solve for x
    x = 63,878,292,381.12/290,277.95
  6. Step 6: Final answer
    x = 220,059.06

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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.