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Finding the Fourth Proportional to 360,312.90, 540,535.16 and 120,404.06

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Solution

The fourth proportional to 360,312.90, 540,535.16 and 120,404.06 is: 180,628.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,312.90 : 540,535.16 = 120,404.06 : x
  2. Step 2: Convert to fraction form
    360,312.90/540,535.16 = 120,404.06/x
  3. Step 3: Cross multiply
    360,312.90x = 540,535.16 × 120,404.06
  4. Step 4: Simplify right side
    360,312.90x = 65,082,627,836.75
  5. Step 5: Solve for x
    x = 65,082,627,836.75/360,312.90
  6. Step 6: Final answer
    x = 180,628.08

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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.