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Finding the Fourth Proportional to 346,864.96, 478,750.80 and 210,870.07

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Solution

The fourth proportional to 346,864.96, 478,750.80 and 210,870.07 is: 291,047.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,864.96 : 478,750.80 = 210,870.07 : x
  2. Step 2: Convert to fraction form
    346,864.96/478,750.80 = 210,870.07/x
  3. Step 3: Cross multiply
    346,864.96x = 478,750.80 × 210,870.07
  4. Step 4: Simplify right side
    346,864.96x = 100,954,214,708.56
  5. Step 5: Solve for x
    x = 100,954,214,708.56/346,864.96
  6. Step 6: Final answer
    x = 291,047.60

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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.