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Finding the Fourth Proportional to 349,666.60, 525,018.30 and 209,698.60

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Solution

The fourth proportional to 349,666.60, 525,018.30 and 209,698.60 is: 314,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,666.60 : 525,018.30 = 209,698.60 : x
  2. Step 2: Convert to fraction form
    349,666.60/525,018.30 = 209,698.60/x
  3. Step 3: Cross multiply
    349,666.60x = 525,018.30 × 209,698.60
  4. Step 4: Simplify right side
    349,666.60x = 110,095,602,484.38
  5. Step 5: Solve for x
    x = 110,095,602,484.38/349,666.60
  6. Step 6: Final answer
    x = 314,858.79

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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.