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Finding the Fourth Proportional to 313,625.94, 432,802.65 and 170,384.73

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Solution

The fourth proportional to 313,625.94, 432,802.65 and 170,384.73 is: 235,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,625.94 : 432,802.65 = 170,384.73 : x
  2. Step 2: Convert to fraction form
    313,625.94/432,802.65 = 170,384.73/x
  3. Step 3: Cross multiply
    313,625.94x = 432,802.65 × 170,384.73
  4. Step 4: Simplify right side
    313,625.94x = 73,742,962,663.53
  5. Step 5: Solve for x
    x = 73,742,962,663.53/313,625.94
  6. Step 6: Final answer
    x = 235,130.30

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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.