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Finding the Fourth Proportional to 256,795.04, 354,490.67 and 153,465.71

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Solution

The fourth proportional to 256,795.04, 354,490.67 and 153,465.71 is: 211,850.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,795.04 : 354,490.67 = 153,465.71 : x
  2. Step 2: Convert to fraction form
    256,795.04/354,490.67 = 153,465.71/x
  3. Step 3: Cross multiply
    256,795.04x = 354,490.67 × 153,465.71
  4. Step 4: Simplify right side
    256,795.04x = 54,402,159,820.14
  5. Step 5: Solve for x
    x = 54,402,159,820.14/256,795.04
  6. Step 6: Final answer
    x = 211,850.51

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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.