Home / 310,484.08-465,741.16-85,839.55

Finding the Fourth Proportional to 310,484.08, 465,741.16 and 85,839.55

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Solution

The fourth proportional to 310,484.08, 465,741.16 and 85,839.55 is: 128,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,484.08 : 465,741.16 = 85,839.55 : x
  2. Step 2: Convert to fraction form
    310,484.08/465,741.16 = 85,839.55/x
  3. Step 3: Cross multiply
    310,484.08x = 465,741.16 × 85,839.55
  4. Step 4: Simplify right side
    310,484.08x = 39,979,009,476.77
  5. Step 5: Solve for x
    x = 39,979,009,476.77/310,484.08
  6. Step 6: Final answer
    x = 128,763.48

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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.