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Finding the Fourth Proportional to 310,125.51, 427,983.54 and 174,183.41

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Solution

The fourth proportional to 310,125.51, 427,983.54 and 174,183.41 is: 240,378.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,125.51 : 427,983.54 = 174,183.41 : x
  2. Step 2: Convert to fraction form
    310,125.51/427,983.54 = 174,183.41/x
  3. Step 3: Cross multiply
    310,125.51x = 427,983.54 × 174,183.41
  4. Step 4: Simplify right side
    310,125.51x = 74,547,632,421.07
  5. Step 5: Solve for x
    x = 74,547,632,421.07/310,125.51
  6. Step 6: Final answer
    x = 240,378.91

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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.