Home / 215,510.32-297,431.40-130,616.56

Finding the Fourth Proportional to 215,510.32, 297,431.40 and 130,616.56

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Solution

The fourth proportional to 215,510.32, 297,431.40 and 130,616.56 is: 180,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,510.32 : 297,431.40 = 130,616.56 : x
  2. Step 2: Convert to fraction form
    215,510.32/297,431.40 = 130,616.56/x
  3. Step 3: Cross multiply
    215,510.32x = 297,431.40 × 130,616.56
  4. Step 4: Simplify right side
    215,510.32x = 38,849,466,303.98
  5. Step 5: Solve for x
    x = 38,849,466,303.98/215,510.32
  6. Step 6: Final answer
    x = 180,267.31

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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.