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Finding the Fourth Proportional to 378,017.60, 567,026.40 and 153,485.60

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Solution

The fourth proportional to 378,017.60, 567,026.40 and 153,485.60 is: 230,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,017.60 : 567,026.40 = 153,485.60 : x
  2. Step 2: Convert to fraction form
    378,017.60/567,026.40 = 153,485.60/x
  3. Step 3: Cross multiply
    378,017.60x = 567,026.40 × 153,485.60
  4. Step 4: Simplify right side
    378,017.60x = 87,030,387,219.84
  5. Step 5: Solve for x
    x = 87,030,387,219.84/378,017.60
  6. Step 6: Final answer
    x = 230,228.40

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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.