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Finding the Fourth Proportional to 340,603.80, 510,905.70 and 163,019.40

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Solution

The fourth proportional to 340,603.80, 510,905.70 and 163,019.40 is: 244,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,603.80 : 510,905.70 = 163,019.40 : x
  2. Step 2: Convert to fraction form
    340,603.80/510,905.70 = 163,019.40/x
  3. Step 3: Cross multiply
    340,603.80x = 510,905.70 × 163,019.40
  4. Step 4: Simplify right side
    340,603.80x = 83,287,540,670.58
  5. Step 5: Solve for x
    x = 83,287,540,670.58/340,603.80
  6. Step 6: Final answer
    x = 244,529.10

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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.