Home / 385,501.20-578,352.60-148,851.60

Finding the Fourth Proportional to 385,501.20, 578,352.60 and 148,851.60

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Solution

The fourth proportional to 385,501.20, 578,352.60 and 148,851.60 is: 223,316.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,501.20 : 578,352.60 = 148,851.60 : x
  2. Step 2: Convert to fraction form
    385,501.20/578,352.60 = 148,851.60/x
  3. Step 3: Cross multiply
    385,501.20x = 578,352.60 × 148,851.60
  4. Step 4: Simplify right side
    385,501.20x = 86,088,709,874.16
  5. Step 5: Solve for x
    x = 86,088,709,874.16/385,501.20
  6. Step 6: Final answer
    x = 223,316.32

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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.