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Finding the Fourth Proportional to 215,346.56, 297,202.08 and 130,510.40

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Solution

The fourth proportional to 215,346.56, 297,202.08 and 130,510.40 is: 180,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,346.56 : 297,202.08 = 130,510.40 : x
  2. Step 2: Convert to fraction form
    215,346.56/297,202.08 = 130,510.40/x
  3. Step 3: Cross multiply
    215,346.56x = 297,202.08 × 130,510.40
  4. Step 4: Simplify right side
    215,346.56x = 38,787,962,341.63
  5. Step 5: Solve for x
    x = 38,787,962,341.63/215,346.56
  6. Step 6: Final answer
    x = 180,118.79

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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.