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Finding the Fourth Proportional to 147,798.40, 221,697.60 and 145,465.60

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Solution

The fourth proportional to 147,798.40, 221,697.60 and 145,465.60 is: 218,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,798.40 : 221,697.60 = 145,465.60 : x
  2. Step 2: Convert to fraction form
    147,798.40/221,697.60 = 145,465.60/x
  3. Step 3: Cross multiply
    147,798.40x = 221,697.60 × 145,465.60
  4. Step 4: Simplify right side
    147,798.40x = 32,249,374,402.56
  5. Step 5: Solve for x
    x = 32,249,374,402.56/147,798.40
  6. Step 6: Final answer
    x = 218,198.40

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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.