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Finding the Fourth Proportional to 247,041.40, 370,907.70 and 153,729.40

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Solution

The fourth proportional to 247,041.40, 370,907.70 and 153,729.40 is: 230,809.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,041.40 : 370,907.70 = 153,729.40 : x
  2. Step 2: Convert to fraction form
    247,041.40/370,907.70 = 153,729.40/x
  3. Step 3: Cross multiply
    247,041.40x = 370,907.70 × 153,729.40
  4. Step 4: Simplify right side
    247,041.40x = 57,019,418,176.38
  5. Step 5: Solve for x
    x = 57,019,418,176.38/247,041.40
  6. Step 6: Final answer
    x = 230,809.16

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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.