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Finding the Fourth Proportional to 245,145.90, 367,718.85 and 243,590.70

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Solution

The fourth proportional to 245,145.90, 367,718.85 and 243,590.70 is: 365,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,145.90 : 367,718.85 = 243,590.70 : x
  2. Step 2: Convert to fraction form
    245,145.90/367,718.85 = 243,590.70/x
  3. Step 3: Cross multiply
    245,145.90x = 367,718.85 × 243,590.70
  4. Step 4: Simplify right side
    245,145.90x = 89,572,892,074.70
  5. Step 5: Solve for x
    x = 89,572,892,074.70/245,145.90
  6. Step 6: Final answer
    x = 365,386.05

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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.