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Finding the Fourth Proportional to 340,019.40, 510,029.46 and 126,784.06

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Solution

The fourth proportional to 340,019.40, 510,029.46 and 126,784.06 is: 190,176.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,019.40 : 510,029.46 = 126,784.06 : x
  2. Step 2: Convert to fraction form
    340,019.40/510,029.46 = 126,784.06/x
  3. Step 3: Cross multiply
    340,019.40x = 510,029.46 × 126,784.06
  4. Step 4: Simplify right side
    340,019.40x = 64,663,605,658.41
  5. Step 5: Solve for x
    x = 64,663,605,658.41/340,019.40
  6. Step 6: Final answer
    x = 190,176.22

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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.