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Finding the Fourth Proportional to 313,270.60, 432,313.78 and 170,030.74

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Solution

The fourth proportional to 313,270.60, 432,313.78 and 170,030.74 is: 234,642.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,270.60 : 432,313.78 = 170,030.74 : x
  2. Step 2: Convert to fraction form
    313,270.60/432,313.78 = 170,030.74/x
  3. Step 3: Cross multiply
    313,270.60x = 432,313.78 × 170,030.74
  4. Step 4: Simplify right side
    313,270.60x = 73,506,631,925.60
  5. Step 5: Solve for x
    x = 73,506,631,925.60/313,270.60
  6. Step 6: Final answer
    x = 234,642.61

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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.