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Finding the Fourth Proportional to 349,970.64, 525,039.40 and 113,313.40

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Solution

The fourth proportional to 349,970.64, 525,039.40 and 113,313.40 is: 169,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,970.64 : 525,039.40 = 113,313.40 : x
  2. Step 2: Convert to fraction form
    349,970.64/525,039.40 = 113,313.40/x
  3. Step 3: Cross multiply
    349,970.64x = 525,039.40 × 113,313.40
  4. Step 4: Simplify right side
    349,970.64x = 59,493,999,547.96
  5. Step 5: Solve for x
    x = 59,493,999,547.96/349,970.64
  6. Step 6: Final answer
    x = 169,997.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.