Home / 330,529.31-455,962.55-215,875.13

Finding the Fourth Proportional to 330,529.31, 455,962.55 and 215,875.13

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Solution

The fourth proportional to 330,529.31, 455,962.55 and 215,875.13 is: 297,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,529.31 : 455,962.55 = 215,875.13 : x
  2. Step 2: Convert to fraction form
    330,529.31/455,962.55 = 215,875.13/x
  3. Step 3: Cross multiply
    330,529.31x = 455,962.55 × 215,875.13
  4. Step 4: Simplify right side
    330,529.31x = 98,430,972,476.57
  5. Step 5: Solve for x
    x = 98,430,972,476.57/330,529.31
  6. Step 6: Final answer
    x = 297,798.02

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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.