Home / 287,320.77-396,753.39-180,075.15

Finding the Fourth Proportional to 287,320.77, 396,753.39 and 180,075.15

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Solution

The fourth proportional to 287,320.77, 396,753.39 and 180,075.15 is: 248,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,320.77 : 396,753.39 = 180,075.15 : x
  2. Step 2: Convert to fraction form
    287,320.77/396,753.39 = 180,075.15/x
  3. Step 3: Cross multiply
    287,320.77x = 396,753.39 × 180,075.15
  4. Step 4: Simplify right side
    287,320.77x = 71,445,426,217.26
  5. Step 5: Solve for x
    x = 71,445,426,217.26/287,320.77
  6. Step 6: Final answer
    x = 248,660.85

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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.