Home / 385,298.47-578,113.10-148,807.23

Finding the Fourth Proportional to 385,298.47, 578,113.10 and 148,807.23

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Solution

The fourth proportional to 385,298.47, 578,113.10 and 148,807.23 is: 223,274.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,298.47 : 578,113.10 = 148,807.23 : x
  2. Step 2: Convert to fraction form
    385,298.47/578,113.10 = 148,807.23/x
  3. Step 3: Cross multiply
    385,298.47x = 578,113.10 × 148,807.23
  4. Step 4: Simplify right side
    385,298.47x = 86,027,406,683.78
  5. Step 5: Solve for x
    x = 86,027,406,683.78/385,298.47
  6. Step 6: Final answer
    x = 223,274.72

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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.