Home / 312,810.03-469,280.66-135,342.27

Finding the Fourth Proportional to 312,810.03, 469,280.66 and 135,342.27

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Solution

The fourth proportional to 312,810.03, 469,280.66 and 135,342.27 is: 203,041.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,810.03 : 469,280.66 = 135,342.27 : x
  2. Step 2: Convert to fraction form
    312,810.03/469,280.66 = 135,342.27/x
  3. Step 3: Cross multiply
    312,810.03x = 469,280.66 × 135,342.27
  4. Step 4: Simplify right side
    312,810.03x = 63,513,509,114.79
  5. Step 5: Solve for x
    x = 63,513,509,114.79/312,810.03
  6. Step 6: Final answer
    x = 203,041.79

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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.