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Finding the Fourth Proportional to 274,547.51, 378,883.46 and 153,688.07

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Solution

The fourth proportional to 274,547.51, 378,883.46 and 153,688.07 is: 212,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,547.51 : 378,883.46 = 153,688.07 : x
  2. Step 2: Convert to fraction form
    274,547.51/378,883.46 = 153,688.07/x
  3. Step 3: Cross multiply
    274,547.51x = 378,883.46 × 153,688.07
  4. Step 4: Simplify right side
    274,547.51x = 58,229,865,059.46
  5. Step 5: Solve for x
    x = 58,229,865,059.46/274,547.51
  6. Step 6: Final answer
    x = 212,093.95

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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.