Home / 385,432.36-578,313.98-148,941.16

Finding the Fourth Proportional to 385,432.36, 578,313.98 and 148,941.16

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Solution

The fourth proportional to 385,432.36, 578,313.98 and 148,941.16 is: 223,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,432.36 : 578,313.98 = 148,941.16 : x
  2. Step 2: Convert to fraction form
    385,432.36/578,313.98 = 148,941.16/x
  3. Step 3: Cross multiply
    385,432.36x = 578,313.98 × 148,941.16
  4. Step 4: Simplify right side
    385,432.36x = 86,134,755,025.42
  5. Step 5: Solve for x
    x = 86,134,755,025.42/385,432.36
  6. Step 6: Final answer
    x = 223,475.67

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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.