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Finding the Fourth Proportional to 205,365.60, 307,443.60 and 153,007.20

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Solution

The fourth proportional to 205,365.60, 307,443.60 and 153,007.20 is: 229,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,365.60 : 307,443.60 = 153,007.20 : x
  2. Step 2: Convert to fraction form
    205,365.60/307,443.60 = 153,007.20/x
  3. Step 3: Cross multiply
    205,365.60x = 307,443.60 × 153,007.20
  4. Step 4: Simplify right side
    205,365.60x = 47,041,084,393.92
  5. Step 5: Solve for x
    x = 47,041,084,393.92/205,365.60
  6. Step 6: Final answer
    x = 229,060.20

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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.