Home / 385,299.47-578,114.60-148,808.23

Finding the Fourth Proportional to 385,299.47, 578,114.60 and 148,808.23

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Solution

The fourth proportional to 385,299.47, 578,114.60 and 148,808.23 is: 223,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,299.47 : 578,114.60 = 148,808.23 : x
  2. Step 2: Convert to fraction form
    385,299.47/578,114.60 = 148,808.23/x
  3. Step 3: Cross multiply
    385,299.47x = 578,114.60 × 148,808.23
  4. Step 4: Simplify right side
    385,299.47x = 86,028,210,363.16
  5. Step 5: Solve for x
    x = 86,028,210,363.16/385,299.47
  6. Step 6: Final answer
    x = 223,276.22

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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.