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Finding the Fourth Proportional to 313,570.08, 432,734.76 and 170,338.32

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Solution

The fourth proportional to 313,570.08, 432,734.76 and 170,338.32 is: 235,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,570.08 : 432,734.76 = 170,338.32 : x
  2. Step 2: Convert to fraction form
    313,570.08/432,734.76 = 170,338.32/x
  3. Step 3: Cross multiply
    313,570.08x = 432,734.76 × 170,338.32
  4. Step 4: Simplify right side
    313,570.08x = 73,711,312,024.00
  5. Step 5: Solve for x
    x = 73,711,312,024.00/313,570.08
  6. Step 6: Final answer
    x = 235,071.25

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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.