Home / 258,420.10-386,852.55-227,316.10

Finding the Fourth Proportional to 258,420.10, 386,852.55 and 227,316.10

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Solution

The fourth proportional to 258,420.10, 386,852.55 and 227,316.10 is: 340,290.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,420.10 : 386,852.55 = 227,316.10 : x
  2. Step 2: Convert to fraction form
    258,420.10/386,852.55 = 227,316.10/x
  3. Step 3: Cross multiply
    258,420.10x = 386,852.55 × 227,316.10
  4. Step 4: Simplify right side
    258,420.10x = 87,937,812,941.06
  5. Step 5: Solve for x
    x = 87,937,812,941.06/258,420.10
  6. Step 6: Final answer
    x = 340,290.14

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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.