Home / 288,386.46-432,579.60-209,999.52

Finding the Fourth Proportional to 288,386.46, 432,579.60 and 209,999.52

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Solution

The fourth proportional to 288,386.46, 432,579.60 and 209,999.52 is: 314,999.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,386.46 : 432,579.60 = 209,999.52 : x
  2. Step 2: Convert to fraction form
    288,386.46/432,579.60 = 209,999.52/x
  3. Step 3: Cross multiply
    288,386.46x = 432,579.60 × 209,999.52
  4. Step 4: Simplify right side
    288,386.46x = 90,841,508,361.79
  5. Step 5: Solve for x
    x = 90,841,508,361.79/288,386.46
  6. Step 6: Final answer
    x = 314,999.21

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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.