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Finding the Fourth Proportional to 313,688.34, 432,889.02 and 170,448.35

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Solution

The fourth proportional to 313,688.34, 432,889.02 and 170,448.35 is: 235,218.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,688.34 : 432,889.02 = 170,448.35 : x
  2. Step 2: Convert to fraction form
    313,688.34/432,889.02 = 170,448.35/x
  3. Step 3: Cross multiply
    313,688.34x = 432,889.02 × 170,448.35
  4. Step 4: Simplify right side
    313,688.34x = 73,785,219,290.19
  5. Step 5: Solve for x
    x = 73,785,219,290.19/313,688.34
  6. Step 6: Final answer
    x = 235,218.24

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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.