Home / 215,310.32-297,220.28-153,261.21

Finding the Fourth Proportional to 215,310.32, 297,220.28 and 153,261.21

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Solution

The fourth proportional to 215,310.32, 297,220.28 and 153,261.21 is: 211,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,310.32 : 297,220.28 = 153,261.21 : x
  2. Step 2: Convert to fraction form
    215,310.32/297,220.28 = 153,261.21/x
  3. Step 3: Cross multiply
    215,310.32x = 297,220.28 × 153,261.21
  4. Step 4: Simplify right side
    215,310.32x = 45,552,339,749.34
  5. Step 5: Solve for x
    x = 45,552,339,749.34/215,310.32
  6. Step 6: Final answer
    x = 211,565.98

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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.