Home / 258,525.02-387,784.58-100,864.20

Finding the Fourth Proportional to 258,525.02, 387,784.58 and 100,864.20

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Solution

The fourth proportional to 258,525.02, 387,784.58 and 100,864.20 is: 151,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,525.02 : 387,784.58 = 100,864.20 : x
  2. Step 2: Convert to fraction form
    258,525.02/387,784.58 = 100,864.20/x
  3. Step 3: Cross multiply
    258,525.02x = 387,784.58 × 100,864.20
  4. Step 4: Simplify right side
    258,525.02x = 39,113,581,434.04
  5. Step 5: Solve for x
    x = 39,113,581,434.04/258,525.02
  6. Step 6: Final answer
    x = 151,295.15

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1.5x scale

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.