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Finding the Fourth Proportional to 395,206.63, 592,904.25 and 128,967.64

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Solution

The fourth proportional to 395,206.63, 592,904.25 and 128,967.64 is: 193,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,206.63 : 592,904.25 = 128,967.64 : x
  2. Step 2: Convert to fraction form
    395,206.63/592,904.25 = 128,967.64/x
  3. Step 3: Cross multiply
    395,206.63x = 592,904.25 × 128,967.64
  4. Step 4: Simplify right side
    395,206.63x = 76,465,460,386.21
  5. Step 5: Solve for x
    x = 76,465,460,386.21/395,206.63
  6. Step 6: Final answer
    x = 193,482.23

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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.