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Finding the Fourth Proportional to 407,009.36, 610,360.68 and 170,368.40

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Solution

The fourth proportional to 407,009.36, 610,360.68 and 170,368.40 is: 255,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,009.36 : 610,360.68 = 170,368.40 : x
  2. Step 2: Convert to fraction form
    407,009.36/610,360.68 = 170,368.40/x
  3. Step 3: Cross multiply
    407,009.36x = 610,360.68 × 170,368.40
  4. Step 4: Simplify right side
    407,009.36x = 103,986,172,474.51
  5. Step 5: Solve for x
    x = 103,986,172,474.51/407,009.36
  6. Step 6: Final answer
    x = 255,488.41

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1.5x scale

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.