Home / 345,746.50-518,707.27-96,428.50

Finding the Fourth Proportional to 345,746.50, 518,707.27 and 96,428.50

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Solution

The fourth proportional to 345,746.50, 518,707.27 and 96,428.50 is: 144,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,746.50 : 518,707.27 = 96,428.50 : x
  2. Step 2: Convert to fraction form
    345,746.50/518,707.27 = 96,428.50/x
  3. Step 3: Cross multiply
    345,746.50x = 518,707.27 × 96,428.50
  4. Step 4: Simplify right side
    345,746.50x = 50,018,163,985.20
  5. Step 5: Solve for x
    x = 50,018,163,985.20/345,746.50
  6. Step 6: Final answer
    x = 144,667.16

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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.