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Finding the Fourth Proportional to 313,395.36, 432,483.12 and 170,152.50

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Solution

The fourth proportional to 313,395.36, 432,483.12 and 170,152.50 is: 234,809.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,395.36 : 432,483.12 = 170,152.50 : x
  2. Step 2: Convert to fraction form
    313,395.36/432,483.12 = 170,152.50/x
  3. Step 3: Cross multiply
    313,395.36x = 432,483.12 × 170,152.50
  4. Step 4: Simplify right side
    313,395.36x = 73,588,084,075.80
  5. Step 5: Solve for x
    x = 73,588,084,075.80/313,395.36
  6. Step 6: Final answer
    x = 234,809.11

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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.