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Finding the Fourth Proportional to 245,464.20, 368,412.30 and 145,499.40

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Solution

The fourth proportional to 245,464.20, 368,412.30 and 145,499.40 is: 218,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,464.20 : 368,412.30 = 145,499.40 : x
  2. Step 2: Convert to fraction form
    245,464.20/368,412.30 = 145,499.40/x
  3. Step 3: Cross multiply
    245,464.20x = 368,412.30 × 145,499.40
  4. Step 4: Simplify right side
    245,464.20x = 53,603,768,602.62
  5. Step 5: Solve for x
    x = 53,603,768,602.62/245,464.20
  6. Step 6: Final answer
    x = 218,377.13

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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.