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Finding the Fourth Proportional to 340,805.52, 470,312.04 and 197,648.70

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Solution

The fourth proportional to 340,805.52, 470,312.04 and 197,648.70 is: 272,755.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,805.52 : 470,312.04 = 197,648.70 : x
  2. Step 2: Convert to fraction form
    340,805.52/470,312.04 = 197,648.70/x
  3. Step 3: Cross multiply
    340,805.52x = 470,312.04 × 197,648.70
  4. Step 4: Simplify right side
    340,805.52x = 92,956,563,300.35
  5. Step 5: Solve for x
    x = 92,956,563,300.35/340,805.52
  6. Step 6: Final answer
    x = 272,755.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.