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Finding the Fourth Proportional to 306,347.10, 459,459.96 and 291,156.90

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Solution

The fourth proportional to 306,347.10, 459,459.96 and 291,156.90 is: 436,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,347.10 : 459,459.96 = 291,156.90 : x
  2. Step 2: Convert to fraction form
    306,347.10/459,459.96 = 291,156.90/x
  3. Step 3: Cross multiply
    306,347.10x = 459,459.96 × 291,156.90
  4. Step 4: Simplify right side
    306,347.10x = 133,774,937,627.72
  5. Step 5: Solve for x
    x = 133,774,937,627.72/306,347.10
  6. Step 6: Final answer
    x = 436,677.67

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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.