Home / 258,349.40-387,401.08-98,433.23

Finding the Fourth Proportional to 258,349.40, 387,401.08 and 98,433.23

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Solution

The fourth proportional to 258,349.40, 387,401.08 and 98,433.23 is: 147,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,349.40 : 387,401.08 = 98,433.23 : x
  2. Step 2: Convert to fraction form
    258,349.40/387,401.08 = 98,433.23/x
  3. Step 3: Cross multiply
    258,349.40x = 387,401.08 × 98,433.23
  4. Step 4: Simplify right side
    258,349.40x = 38,133,137,611.36
  5. Step 5: Solve for x
    x = 38,133,137,611.36/258,349.40
  6. Step 6: Final answer
    x = 147,602.97

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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.