Home / 545,259.16-817,899.66-145,899.30

Finding the Fourth Proportional to 545,259.16, 817,899.66 and 145,899.30

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Solution

The fourth proportional to 545,259.16, 817,899.66 and 145,899.30 is: 218,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,259.16 : 817,899.66 = 145,899.30 : x
  2. Step 2: Convert to fraction form
    545,259.16/817,899.66 = 145,899.30/x
  3. Step 3: Cross multiply
    545,259.16x = 817,899.66 × 145,899.30
  4. Step 4: Simplify right side
    545,259.16x = 119,330,987,864.24
  5. Step 5: Solve for x
    x = 119,330,987,864.24/545,259.16
  6. Step 6: Final answer
    x = 218,851.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.