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Finding the Fourth Proportional to 153,907.98, 230,880.36 and 145,509.90

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Solution

The fourth proportional to 153,907.98, 230,880.36 and 145,509.90 is: 218,282.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,907.98 : 230,880.36 = 145,509.90 : x
  2. Step 2: Convert to fraction form
    153,907.98/230,880.36 = 145,509.90/x
  3. Step 3: Cross multiply
    153,907.98x = 230,880.36 × 145,509.90
  4. Step 4: Simplify right side
    153,907.98x = 33,595,378,095.56
  5. Step 5: Solve for x
    x = 33,595,378,095.56/153,907.98
  6. Step 6: Final answer
    x = 218,282.24

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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.