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Finding the Fourth Proportional to 242,698.79, 334,925.88 and 135,275.65

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Solution

The fourth proportional to 242,698.79, 334,925.88 and 135,275.65 is: 186,681.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,698.79 : 334,925.88 = 135,275.65 : x
  2. Step 2: Convert to fraction form
    242,698.79/334,925.88 = 135,275.65/x
  3. Step 3: Cross multiply
    242,698.79x = 334,925.88 × 135,275.65
  4. Step 4: Simplify right side
    242,698.79x = 45,307,316,118.82
  5. Step 5: Solve for x
    x = 45,307,316,118.82/242,698.79
  6. Step 6: Final answer
    x = 186,681.26

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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.