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Finding the Fourth Proportional to 360,015.90, 540,023.85 and 297,030.30

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Solution

The fourth proportional to 360,015.90, 540,023.85 and 297,030.30 is: 445,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,015.90 : 540,023.85 = 297,030.30 : x
  2. Step 2: Convert to fraction form
    360,015.90/540,023.85 = 297,030.30/x
  3. Step 3: Cross multiply
    360,015.90x = 540,023.85 × 297,030.30
  4. Step 4: Simplify right side
    360,015.90x = 160,403,446,172.66
  5. Step 5: Solve for x
    x = 160,403,446,172.66/360,015.90
  6. Step 6: Final answer
    x = 445,545.45

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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.